In 2001, Mariah Carey made a very bizarre guest appearance on TRL, coming out into the studio, totally unbeknownst to host Carson Daly. Carey pushed an ice cream cart, wearing only an over-sized "Loverboy" T-shirt, which she then stripped off to reveal a halter top and gold short-shorts. Carey kept claiming this was her "therapy session," and it was pretty obvious to viewers that something was off. Shortly after this instance, she was hospitalized for "exhaustion," but has later come out to reveal that it was after that instance that she was diagnosed with bipolar disorder.